Improvement in combined saw-set, gtjmmer, punch



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Letters Patent No. 91,097, (lated June 8, 1869.

IMPROVEMENT IN COMBINED' 'SAW-setz', GUMMER, PUNCH, AND WIRE-CUTTER.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known that I, JONATHAN L. DEVOL, ofParkersburg, in the county of NVood, in the State of Vcst XYirginia,have invented a combined Saw-Set, Glimmer-Punch and Wire-Gutter; and Ido hereby declare that the following isa full, clear, and exactdescription of the same, reference being had to the an' nexed drawings,and to the letters of reference marked thereon. I, n

- ,Ihe nature of my invention consists in providing the jaws of a.pairof pincers with removable dies or plates, and punches, and with asliding guide for' the purposes hereinafter set forth.

To enable those skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Figure 1 represents an elevation, showing the under side of the lowerjaw.

Figure .2 is a side view of the tool, arranged for punching.

Figures 3 to 9 represent views and sections of the different plates andpunches.

Figure 10 is a plauof the sliding guide.

A represents the long lower jaw, which has a wide, dovetailed, andslightly tapering groove cut across its upper side. The depth of thisgroove is equal to the thickness of the plates to be inserted into it,so

that the upper side of the jaw is in one plane with' the upper side ofthe plate when inserted. rlhe triangular-shaped hole in this jaw isdirectly under the notch in the gunlining-plate, and the eye ofthepunchplate, when inserted, and allows the wads to fall through.

B is the short upper jaw, which has a conical eye widening toward theunder side, in which the punches are inserted.

C represents the sliding guide, secured to the. upper side of the lowerjaw by a screw, u., which moves loosely in a slot of the jaw. lt has aseniicircular shape, as shown in iig. l() of the drawings, with its endspointing to the open ends of the jaws.

By means of the screw and slot in the jaw, it can be adjusted to givethe desired set to the teeth of a saw, and in gurniming, to determinethe size and sha-pe p of the teeth.

a is the upper handle, and forms one piece with the lower jaw A.

b is the lower handle, forming one piece with the upper jaw B, and ishinged at :c to the upper handle a. n s is a spring between the handles,throwing them apart, and holding the jaws open. Itis fastened to theupper handle a. y

G represents the set-punch.

H represents the gumming-punch. y I represents the round punch.

K represents the cutting-punch.

The operation is as follows :4 g

\Vhen it is desired to use' the tool as a saw-set, the set-plate isinserted in the groove vof the lower jaw of the pincers, in such amanner that its bevel is up, and nearest the sliding guide,

Togive to the teeth of a saw more or less set, the sliding guide ispushed over or from the bevel of the set-plate. v

The set-punch 'is inserted in the upper jaw, in such a manner, that whenbrought down on the set-plate,

the part g, of its ends, will lie flat against the upper side, and thepart g', against the bevel of the set-plate. 'The upper handleis nowtaken in the palm of thc hand, and the long lower jaw slipped under thesaw, lying dat on it, and the toothed ed'ge. of the saw butting againstthe sliding guide. The lower handle is then drawn up bythe fingers; thisbrings the punch down on the saw, holding it firmly, fiat toV the jaw,and, at the same time, bending a tooth down. The pressure on the lowerhandle is then released, when the action of the springwill throw theupper jaw with the punch up. The tool is then slid along to the nexttooth but one, the operation repeated, and so on, until every alternatetooth is bent down, when the saw is lturned upside down, andthe teethnot yet bent opi erated upon in the saine manner.

The double action of the set-punch pressing the saw dat against theset-plate, and at the same time bending a tooth over the bevel of theplate, makes a set-screw unnecessary, and gives a uniform set to thesaw. v

For cutting wire the same plate may be used, but the set-punch is takenont of, and the cutting-punch put in the upper jaw. n

For gulnming, Jthe plate E and punch H are used, the plate beinginserted iu the lower jaw in such a manner that its notch is nearest thesliding guide and the punch in the upper jaw, so that when brought downit will enter the notch in the plate. rlthe size oi the teeth and theirshape, are determined by thc adjustable sliding guide, which allows moreor less of the saw to be subjected to the action of the punch, and atdiiicrent angles.

For punching, the plate F and the round punch are used, the latter, whenborne down, entering the eye oi" the forlncrl ln guuuning and punching,the operation is arrested by the curved ends oi' the handles comingvtogether at thc point when the whole surface of the end of a punchisjust below the plane ofthe upper side ofthe plate. Y

That I cla-ini as my invention, and desire to secure by Letters Patent,is

1. The jaw A, constructed as snown and arranged, lIn' testimony whereof,I have signed my name to to receive the dies or plates D E F, and. guideC, in this specification, in the presence of two subscribing combinationwith the jaw B, substantially as and for witnesses. the purpose specied.v j J. L. DEVOL.

2. The combination and arrangement of the jaws A and B, set-punch G,gumming-plate H, round punch Witnesses:

I, cutting-punch K, guide G, and plates or dies D, E, THEODORE L.MAURICE, and F, substantially as shown, and for the purposes W. S.DEVOL. specified. l

